300ft Underwater Cat6 Ethernet PoE++ Tether Cable for ROVs, Cameras, and Marine Systems
The DNC-1044 is a professional 300ft (90m) underwater Cat6 Ethernet PoE++ tether cable designed to carry reliable Gigabit data and PoE power through one cable in marine and underwater environments.
It is built for underwater cameras, ROV systems, live streaming, remote camera control, marine research, industrial inspection, telemetry, and custom subsea equipment that require a dependable Ethernet connection underwater.
Assembled in the USA by Dive And See. This is not a generic waterproof RJ45 cable. It is a professional underwater Ethernet cable solution made for real marine projects, technical support, and custom configurations.
Quick Benefits
- 300ft (90m) underwater Cat6 Ethernet tether cable
- Supports PoE / PoE+ / PoE++ power delivery
- Gigabit Ethernet data transmission up to 1 Gbps
- Single-cable solution for power, data, control, and video
- Designed for ROVs, underwater cameras, live streaming, inspection, and marine systems
- Compatible with Dive And See underwater Ethernet bulkhead connectors
- Assembled in the USA by Dive And See
- Custom lengths and connector configurations available
Why Use PoE Underwater?
Power over Ethernet allows both data and electrical power to travel through a single underwater cable. This reduces system complexity, makes deployment easier, and eliminates the need for separate underwater power wiring in many camera, ROV, and monitoring systems.
Why This Is Not a Regular Waterproof RJ45 Cable
Many waterproof RJ45 cables and IP67/IP68 couplers are made for outdoor, industrial, or panel-mount use. The DNC-1044 is built as a complete underwater Ethernet cable solution for marine systems that need reliable long-distance data and PoE power delivery.
It is designed for real underwater applications such as ROV tether communication, underwater camera systems, live streaming, marine inspection, research equipment, monitoring systems, and custom subsea projects.
Diagram A — How It Works
The DNC-1044 connects surface laptops, PoE switches, routers, control systems, and recording equipment to underwater cameras, ROVs, sensors, and subsea devices using compatible Dive And See underwater Ethernet bulkhead connectors.
Technical Specifications
| Model | DNC-1044 |
| Product Type | Underwater Cat6 Ethernet PoE++ tether cable |
| Cable Length | 300ft (90m) |
| Ethernet Standard | Cat6 Gigabit Ethernet |
| Data Speed | Up to 1 Gbps |
| PoE Support | IEEE 802.3af / at / bt (PoE / PoE+ / PoE++) |
| Application | Simultaneous underwater power, data, control, and video transmission |
| Environment | Underwater, marine, wet, and professional field environments |
| Compatible Connectors | Dive And See underwater Ethernet Cat6 bulkhead connectors |
| Shorter Cable Option | DNC-1020 — 100ft underwater Cat6 Ethernet PoE++ cable |
| Custom Options | Custom lengths and connector configurations available by request |
| Origin | Assembled in the USA by Dive And See |
Compatible Dive And See Bulkhead Connectors
For a complete underwater Ethernet system, pair the DNC-1044 cable with Dive And See underwater Ethernet Cat6 bulkhead connectors. These connectors allow Ethernet to pass through underwater camera housings, control boxes, marine enclosures, and custom subsea systems.
- DNC-2025 — Underwater Ethernet Cat6 bulkhead connector for 16mm ports
- DNC-2071 — Short-thread underwater Ethernet Cat6 bulkhead connector
- DNC-2084 — Swivel-style underwater Ethernet Cat6 bulkhead connector
- DNC-2084-L — Long-thread M16x1 swivel-style underwater Ethernet Cat6 bulkhead connector
- DNC-2082 — Underwater Ethernet Cat6 bulkhead connector with 7/16-20 thread
- DNC-2132 — M24 elbow underwater Ethernet Cat6 bulkhead connector
Why Professionals Choose the DNC-1044
- Reduces system complexity using one cable for power and data
- Supports long-distance underwater Ethernet deployments
- Works as an underwater Ethernet tether for ROVs and camera systems
- Designed for professional marine, industrial, scientific, and broadcast applications
- Compatible with Dive And See underwater Ethernet bulkhead connectors
- Assembled in the USA, with custom support available
Compatible Equipment
Product Gallery
Available Length Options
- 300ft (90m) — Standard long-distance underwater deployment
- 330ft (100m) — Extended underwater reach applications
Looking for a Shorter Cable?
For more compact underwater Ethernet systems, see: DNC-1020 — 100ft underwater Cat6 Ethernet PoE++ cable.
Custom Options
Custom cable lengths, connector types, and underwater Ethernet system configurations are available upon request for underwater robotics, inspection systems, marine research, broadcast, monitoring, and subsea communication systems.
Important Tightening Warning
Before submerging underwater equipment, verify that all waterproof connectors are fully tightened by hand. Do not use tools. Improper tightening may result in water intrusion and equipment damage.
Applications
- Underwater live streaming systems
- ROV tether communication
- Subsea robotics
- Marine research and monitoring
- Industrial underwater inspections
- Aquaculture and underwater observation
- Security and surveillance systems
- Underwater telemetry systems
- Remote underwater camera control
- Custom subsea communication systems
Who Is This Cable For?
- ROV and underwater robotics operators
- Underwater live streaming teams
- Inspection and engineering companies
- Marine researchers
- Professional underwater camera integrators
- Broadcast and event production teams
- Industrial subsea system builders
Frequently Asked Questions (FAQ)
Can the DNC-1044 be used as an ROV tether?
Yes. The DNC-1044 can be used as an underwater Ethernet tether for ROV systems, underwater cameras, sensors, and marine control applications where Cat6 Ethernet and PoE power are required.
Can the DNC-1044 transmit both power and data?
Yes. The DNC-1044 supports PoE, PoE+, and PoE++ standards for simultaneous underwater power and Gigabit Ethernet data transmission over a single cable.
What is the maximum Ethernet speed?
The cable supports up to 1 Gbps Gigabit Ethernet data transmission.
Is this the same as a regular waterproof RJ45 cable?
No. Many waterproof RJ45 cables are designed for outdoor or panel-mount use. The DNC-1044 is designed as an underwater Ethernet cable solution for marine systems, underwater cameras, ROVs, and compatible Dive And See bulkhead connectors.
Is this cable made in China?
No. The DNC-1044 is assembled in the USA by Dive And See.
What underwater systems can use this cable?
The DNC-1044 is designed for underwater cameras, ROVs, telemetry systems, underwater monitoring systems, marine inspection equipment, and industrial subsea systems.
What bulkhead connectors are compatible?
The cable works with Dive And See underwater Ethernet bulkhead connectors including DNC-2025, DNC-2071, DNC-2084, DNC-2084-L, DNC-2082, DNC-2132, and other compatible Dive And See underwater Ethernet connector assemblies.
Is there a shorter version of this cable?
Yes. For a shorter underwater Ethernet cable, see the DNC-1020 100ft underwater Cat6 Ethernet PoE++ cable.
Can custom cable lengths be ordered?
Yes. Custom cable lengths and connector configurations are available upon request.
Why use PoE underwater?
PoE simplifies underwater installations by combining power and data into one cable, reducing complexity and improving deployment efficiency.
Is this cable suitable for professional underwater applications?
Yes. The DNC-1044 is designed for professional marine, industrial, scientific, inspection, and broadcast underwater systems.
